Window structure



July 25, 1933- w J. KLEMM WINDOW STRUCTURE Filed Dec. 51, 1951 2 Sheets-Sheet 1 V5 :7 wzwm (If 6727772 W. J. KLEMM WINDOW STRUCTURE July 25, 1933.

2 Sheets-Sheet 2 Filed Dec. 31, 1931 6 6. fiw

1 1 Q m 1 m w? G Q J a 5%; 3 Z w l w n m 1 T .4 MM MM m 5 Patented July 25,1933 g I 1 919 371 UNITED STATES PATENT; i Ei-t Application filed December 31, 1931. Serial No. 584,060.

My invention relates to window structures comprises a sill and the side or vertical particularly to window structures of sheet grooves 11 and 12 for the lower andupper metal and of that type in which the window sash respectively, the frame being preferably sashes, in addition to being vertically slidconstructed of sheet metal. I have-shown 5 able in the window frame, are adapted to be the construction and arrangement for control swung to inclined or ventilatingposition, or of the lower sash of a window, it being underto a horizontal or flat position for washing stood in the 'art that the upper sash may be from the inside of the building. controlled in the same manner. In each of An important object of the invention is to the side'grooves 11 and '12 of the window for braking and stopping the window sash of sheet metal and extending fromutojp to against vertical movement when the sash bottom of the frame. Each channel has the is in inclined position. front flanges 14; and 15 extending inwardly to A further object of the invention is to condefine a vertical slot 16. 1 a 15 ccal the brake mechanism and sash support- In a manner well known in the art a pulley 7&5

ing parts within channels so that these parts not shown) is pivoted. onthe frame at the will not be exposed to view and will be proupper end of each of its side grooves and meted, 1 around each pulley extends a sash -weight Another object is to provide guide mem- Cable or tape 17 having its inner end con- 29 hers forming part of the connection between nected to a suitable sash weight (not shown), the sash weights and the bottom-of the sash the'outcr end of eaohcable or tape extend g for guiding the sash'du-ring movement thered wnwardly through the corresponding of to ventilating or to washing position. Channel 13. In accordance with my inven- Still another bject, is to provide in]- 131011 IPI'OVlClQ it fltt bEll 18111 621611 Of the Cllfiillproved lockingincans or latch means for locknels' 13 having at its upper end a section ing the sash against vertical movement when deflected inwardly therefrom- 1 Provide a in vertical osition, hook 19 for receiving a link 20 at the lower The above enumerated and other'features nd f he aSh Weigh tape-17, theha-I' at its of the invention are incorporated in the struc- IOWQI being Secured to block -1 A 7 3O ture shown on the drawings, in whichdrawpp r d bove the hook-:19 the bar 18 is ings secured, as by means of a rivet 22, to a guide Figure 1 is a vertical section of the lower frame 23rwhichimay be f U shape cr s s part of. a window frame, and the lower sash O t0 fit Within the r p ve channel f 0l a i d elevation; guiding the upperwend'of the bar=18 The Figure 2 is a section through asash and its upper end 18"0f the bar 18 may be deflected supporting channel and mechanism; inwa dly m {L11 abutment l" the Sash Figure 3 is a front elevationof one of the p 17 O 'S C mp6 invertical alignguidc channels and supporting mechanism men't Withinllhe Channel T pp therein; of the front wall of the frame '23 is'depressed 4% of Figure 2; brake levers 24 and'25 which extend 'up- Figure 5 is an enlarged section on plane Wardly and terminate in semi-cylindrical 55 of Figure 3; p ends 26.- Each brake lever has a lateral pro- Y Figure 6 is an enlarged section on plane j ctiOn 0Ill1g27 i H ng gemen With 6 -6 of Figure 2; a I the sides of the'corresponding channel 13 Figure 7 is an enlarged front elevation of when the brake levers are forced apart, and

sash lock mechanism; and v to obtain suifr'cient braking "surface on the Figure 8 is a section like Figure 5 showprojections they may be continued across the mg the open position'of the lock mechanism. extensions 28 on the backs oft-he levers, I

provide improved means and arrangement frame I insert a guide channel 13 preferablyf Figure 4 is an enlarged s tion on plane to form a seat for-the lower end of a pair of F8 4 E) On the Structure Shown the d w, frame The Window sash may be of conventional 1:106

'35 screws 40.

fing arm 42 extending uowardl construction comprising the sheet metal rectangular frame 29 having the grooves 30 for receiving the window pane For the purposes of my invention I provide a wall 32 in each side'of the sash'franie set inwardly a distance from the side ec ges of the sash frame as clearly shown in Figure 4. A supporting bracket 33 is secc-ured against the front of each inset wall 32 at the lower end thereof and the lower end 33 of the bracket is offset outwardly a distance and has a pivot'opening 34 for receiving a'pivot stud 35 extending from a guide frame 36 within the adjacent guide channel 13. The frame 36 is of exterior rectangular shape to fit within the guide channel, the front wallof each frame bearing against the corresponding guide bar 18 in the guide channel and the upper ends 3'Tof the frame extending around the edges of and a 20 distance behind the guide bar to form abutments for engagement with the block 21 secured to the lower end of the guidebar. The pull of the sash weights is communicated through the guide bars 18 and the blocks 21 25 at the lower ends thereof and against the 'abutments 37 of the guide frames 36.

A distance above the lower edge of each sash frame a pivot fitting secured against the outer face of the inset wall and to strengthen this wall and the support of the pivot bracket33 and fitting 38 a metal strip '39is applied against the inner side of the inset wall 32 and the fittings and thelstrip secured rigidly together as by means of Each fitting 38 serves to support a pivot pin 41fo'r pivoting at its l'ower end an operating arm 42 and these arms may be in --the formof flat metal strips or b In each channel 13, above the brake levers therein,"is

a plate or frame 43 having the guide legs 44 extending rearwardly therefrom, the frame fittingin the guide channel for movement therein. A boss 45 extends forwardly from 45 each plate or frame 43 through the slot 16 of the respective guide channel and serves to support a pivot pin 46 which pivotally re 'ceives the upper end of the corresponding operating arm 42. Eachsashhas an operat A from opposite sides thereof and pivoted to the frame 43in the respective guide channel 13.

Each pl ates-3 has at its lower end a wedge projection 47 above the wedgelevers 24 and 25 so that upon downward movement of the plate 43 the wedge projection will engage between and against the outer'ends of the levers to-spreadthem apart to force their brake lugs 27 :intofrictional engagement with the side '60 walls of the respective guide channel 13 to thus lock the window sash supporting bars 18 against vertical movement in the guide channels and thereby hold the upper pivot plates 43 in fixed position.

movement in the channels.

- horizontal downward swing thereof will be prevented by the abutment of theguide frames 36 bars 13.

hind the'channel flanges 14 and 15.

When the window sashes are in vertical or closed position the operating arms will be parallel with the guide channels 13 and the wedge frame 43 will be above and disengaged from the brake levers 24 and 25. If it is desired to tilt the saslnas for example the lower sash shown on the drawings, the sash is preferably first raiseda short distance to carry its lower end above the sill 10 and then when the sash is swung outwardly on the pivot or trunnion pins 35 the operating arms' porting bars 18 against vertical movement in the guide channels and to hold the frames 43 and pivot pins 46 against further downward The sash will now beheld by the supporting arms 42 in the slightly inclined or ventilating position.

If it is desired to move the sash into horizontal or washing position its upper end is swung outwardly; such outward. swing causing thesash to fulcrum on the pivot pins 41 at the lower ends of theoperating arms 42 so th the lower end of the sash will swing in wardly. being guided. in such movement by the guide frames 36 traveling through the guide channels and along the guide bars 18.

\Vhen the sash has thus been swung down to or washing position, further againstthe abutments 48 secured to the guide These abutments or stops 48 may be formed from sheet metal and bent to U shape to tittlie interior of the guide channels whereby to assist in keeping the bars 18 properly aligned within the guidechannels.

When a sash has been tilted for ventilation or moved to horizontalposition for washing it will be locked against vertical movement by the brake levers. lVhen the sash is swung gupvmrdly from the l'iorizontal' position its inner, end will descend the guide frames 36 shifting downwardly back to their normal positions-at the lower ends of the guide channels and'as the sash approachesvertical or closed position, the wedge projection 47 will be disengaged from the brake levers so that when the sash assumes its vertical or closed position within the window frame it will be again freed for ordinary vertical movement in the window frame for opening or closure in the ordinary manner.

lhe sash tape, the bars 18 and the various guide frames therefor. and the'wedge and brakeelements are all within the guide chaniels 13 and well concealed and protected be The pivot fittings 33 and 38. and the, operating ash frames outside of the inset walls 32, the outside walls of the sash being "cut away sufficiently to leave'clearance spaces 49 for outward passage of the operating arms. The structrn'e, from the inside, thus presents the appearance of an ordinary window. During swing of a sash toinclined or horizontal position. and swing ack of the sash to fledlpzsition the friction of the guide frames 36 against the guide channels '13 and the bars 18, will more or less balance the weight of the sash so thatit can be readily manipulated and will substantially self-lock itself in any position of inclination to which it has been moved and itwill move easily and without arring back into normal position.

I also provide improved lock mechanism for locking the sashes against swinging movement from their closed position. At its upper end the brake frame 43 has the longitudinal notch. for receiving the outer end of a latch bolt 51 pivoted at its inner end to a fitting secured to the inset wall 32 of the sash as by means of screws. the

fitting having the concave upper end 52 for receiving the semi-circular end of the lock bolt. a spring 53 being secured to the bolt and abutting the end 52 of the fitting and tending to hold the lock bolt in outer horizontal position in thelocking slot 50. the bolt extendng through the slot 16 of the respective guide channel 13. Preferably there is a lock structure at each side of the sash and to unlock the sash I provide pins 54 each having the head or knob 55 011 its outer si e. each pin extending through vertical slot 56 in the front wall of the sash frame. a

plate 57 being secured to the pin inside-of the sash wall to hold the pin in the slot but to permit vertical shift thereof by means of the knob 55. Each lock bolt has a lateral abutment 58 above and in the pathof the pin so that when the knobis pushed upwardly the pin will engage the abutment hug and swing the lock bolt unwardlv out of the lock notch 50 to release the sash for swing in the window frame. The pressure ofthe spring 53 will press the abutment lug against the pin to press the pin against the side of the slot 56 so that the frictional engagement will lock the pinaud lznob in its upper or unlocking position..- Before a sash can be swung to incliner position the lock pins must be raised to withdraw the lock bolts, and then after thesash has been returned to nor- :mal position the pins may be shifted downwardly to release the lock bolts for reloclring engagement in the lock slots 50.

I have described practical and efficient embodiment of the features of my invention but I do not desire to be limited to the c-Xac details of construction, arrangement, and operation as changes and modifications may be made without departing-from the scope of the I claim as follows:

1. In windowstructure, the combination of a window frani'e,a windowsasluguide channels at the OPPOSit-G'ShllGS of said frame, a bar in eaclrguidechannel anda s: sh

invention as'defined in the appended claims.

weight cable extending therefrom, slide frames in said channels guided therein by said bars and having pivotalconnection with said sash at the lower corners thereof, operating arms extending from said sash, brake mechanism carried by each bar and brake operating mechanism in each channel connected with the upper end of the corresponding operating arm, swing of said sash"causing cooperation of said brake actuating mecha-' nisms with said brake mechanisms to lock said bars against vertical movement in said channels wherebj said arms will be locked.

thereof and receiving said suppertingstruc-v tures, operating arms extending from the sides of said sash, brake means on each supporting structure. a brake operating means in each channel above the respective brake means and'having i-ivotal connection with the upper ends of said operating arms whereby swing of said sash will cause downward shift of the brake operating means into cooperation with the braking means, means whereby saidcooperation will cause braking engagement of the braking means with the sides of the channels to t ereby lock the sup-r iortin structures a ainst vertical niovement in said channels,further swing of said sash after operatlorrof the brake mechanism causing said slide members to shift upwardly in said channels, and stops on said supportin g structures for limiting the upwardtravel of said slide members. r

8. In windowstructure, the combination of a. window frame having side channels, a sash, sash supporting structure in ,each channel comprising slid-e frames having pivotal supportii' g connection with the sash at the lower end thereof, means for counterbalancing the weight said supporting structures and sash, brake members carried by said supporting structures, actuating means in each channel above the brake members therein, operating arms extending between said sash and said actuating means for causing cooperation of said actuating means with saidfbrake members when said sash is moved to inclined posi} tion, means whereby such cooperation will cause brake engagement of the brake members with the channel sides to lock said supporting structures against vertical movement and to hold the upper ends of said arms against vertical movement, said arms when nection with and sliding connection relative to said supporting structures, arms pivoted at their lower ends to said sash, braking means within said channels between the upper ends of said arms and said supporting structures, and means whereby swing of said sash will cause operation of said braking mechanism to secure said supporting structures and the upper ends of said arms against movement relative to said channels.

5. In window structure, the combination of a. window frame having side channels, a sash, supporting structure for the sash in each of said channels, means a llording pivotal and slide connection between'sa-id sash and supporting structures, brake elements in each channel supported by the supporting structure therein, a wedge member in each chan nel above the brake elements, supporting side arms pivoted at their lower ends to said sash and pivoted ac their upper ends to said wedge elements whereby tilting of said sash to inclined position will engage said wedge elements with said bralreolements to spread said brake elements apart int-o braking cugagement with the sides of said. channels to thereby lock said supporting structures against vertical movement in said channels.

6. In window structure of the class d-escribed, the combination of a window frame having side channels, a sash, supporting means in each guide channel vertically shittable therein, means pivot-ally connecting said sash at the lower end thereof with the supporting structiu es, counterbalance means connected with said supporting stri'lcturcs for counterbalaucing the weight thereof and of said sash, brakelevers' pivoted on said supporting structures within said channels, wedge members shift-able in said channels above said brake levers, supporting arms ex.- tending from the sides of said sash and connecting at their upper ends with said wedge members whereby. swing of said sash on its pivot support will cause said arms to shift said wedge membersto spread apart the braking levers into braking engagement with the sides of said channels to thereby lock said supporting structures against vertical movement in said channels. I

7. In window structure of the class de scribed, the combination of a frame having side grooves, stationary guide channels. in

said side grooves, a sash, a supporting bar in each channel for said sash having pivot connection at lower end with the sash whereby said sash will move with said. bars,

counterbalance means connected with the up ward shift of saidactuating means to operate said brake structure tov lock said bars-to said channels against vertical movement in said channels; Y

8. In window construction of the class described, thecombination of side channels, a sash, supporting structure vertically shittable in said channels, means atl'ording pivotal connection between the lower end of the sash and the supporting structure whereby the sash may be swung to an angle with said 1-.hannels,- side arms extending upwardly from said sash, and braking structure in saidchannels operable by said arms when said sash is swung to inclined positionto lock said bars against vertical movement in said channels.

9. In window frame structure of the class described, the combination-ofguide channels, a sash, supporting means in said channels for said sash comprising a-pivotalconnection, a lock bolt pivoted on said sash and normally extending into oneof said channels, a lock abutment in said channel for normally receiving thebolt end to lock said sash against swinging movement on its pivot support, and a shiftable member on said sash for cooperating with said bolt to release it from said channel. 1

10. In window structure of the class described, the combination of a. r'rame'having side channels, a sash pivoted at its lower end for swinging movement to an angle with said channels, supporting arms extendingupwardly from the sides of said. sash, members shdable within said channels and havmg connection with the upper ends of said arms,

locking notches in said sliding members, lock bolt-s on said sash normally extending into said locking notches to prevent swinging movement oft-he sash, and shit'table release members on said sash tormoving saidlocking bolts to unlocking positionto permit swing of said sash.

11.-In window construction of the class described, the combination of side channels,

a sash, supporting structure vertically shittable in said channels, means aifording pivotal connection between the lower end of the sash and the supporting structure whereby the sash may be swung to an angle with said channels, side arms extending upwardly from said sash, said side arms being free for bodily clownward movement during initial swinging movement of said sash, and means operas tive after such initial swinging movement for interlocking the upper ends of said arms and side channels to prevent further bodily movement or" said arms.

12. In window construction of the class described, the combination of vertical side channels, a sash, means pivoting said sash at its lower end for swinging thereof relative to said channels, side arms pivoted at their lower ends to said sash, guide members in said channels above th-e'upper ends of said arms, said guide members being free for movement in said channels during initial swing o1 said sash, and means operative after such initial swing for interlocking said guide members with said channels.

13. In window construction of the class described, the combination of guide channels, a sash, lover guide members in said channels, means pivoting said sash at its lower end to. said lower guide members, upper guide members in said channel, side arms pivoted at their lower ends to said sash and at their upper ends to said upper guide members, said upper guide members having limited clownward movement in said channels and means for locking said members against further downward movement after such initial movement whereby said sash may be swung to ventilating position and held in such position, said arms then forming a support for further swing of said sashvon its pivotal connection with said arms, said lower guide members guiding said sash during such additional swinging movement thereof.

14. In window structure of the class described, the combination of a window frame having guide channels in its sides, a sash,

lower guide members in said guide channels and means pivoting said sash at its lower corners to said guide members, upper guide members in said channels, side arms pivoted at their upper ends to said upper guide members and pivoted at their lower ends to said sash intermediate the ends thereof, said upper guide members being adapted for limited downward movement in said channels where by said sash may beswung on its lower pivot connection to a ventilating position, means for locking said upper guide members against further downward movement, said sash after locking of said upper guide members being turnable on its pivot connection with said side arms, said lower guide members moving upwardly in said guide channels to guide the turning-movement of said sash, and means for limiting the upward movement of said lower guide members.

WILLIAM J KLEMM. 

